How Earth avoided global warming, las...

How Earth avoided global warming, last time around

There are 9 comments on the Science Daily story from Jun 12, 2014, titled How Earth avoided global warming, last time around. In it, Science Daily reports that:

Geochemists have calculated a huge rise in atmospheric carbon dioxide was only avoided by the formation of a vast mountain range in the middle of the ancient supercontinent, Pangea.

Join the discussion below, or Read more at Science Daily.

SpaceBlues

Houston, TX

#1 Jun 12, 2014
No humans involved!
Jim the Hoax Denier

Pasadena, TX

#2 Jun 14, 2014
SpaceBlues wrote:
No humans involved!
Good thing those T Rexs didn't have SUVs! Oh what am I thinking? That would never work. Their arms were too short to reach the steering wheel!
alexandre

Athens, Greece

#3 Jun 15, 2014
Jim the Hoax Denier wrote:
<quoted text>
Good thing those T Rexs didn't have SUVs! Oh what am I thinking? That would never work. Their arms were too short to reach the steering wheel!
:)))
rio

London, UK

#4 Jun 19, 2014
Last time around there was probably not billions of humans destroying their environment.

It's so funny when people try to absolve human activities of any impact on the environment.

Guilty us ? Never !!!
SpaceBlues

Houston, TX

#5 Jun 19, 2014
rio wrote:
Last time around there was probably not billions of humans destroying their environment.
It's so funny when people try to absolve human activities of any impact on the environment.
Guilty us ? Never !!!
Human-caused environmental changes are creating regional combinations of environmental conditions that, within the next 50 to 100 years, may fall outside the envelope within which many of the terrestrial plants of a region evolved. These environmental modifications might become a greater cause of global species extinction than direct habitat destruction. The environmental constraints undergoing human modification include levels of soil nitrogen, phosphorus, calcium and pH, atmospheric CO2, herbivore, pathogen, and predator densities, disturbance regimes, and climate. Extinction would occur because the physiologies, morphologies, and life histories of plants limit each species to being a superior competitor for a particular combination of environmental constraints. Changes in these constraints would favor a few species that would competitively displace many other species from a region. In the long-term, the “weedy” taxa that became the dominants of the novel conditions imposed by global change should become the progenitors of a series of new species that are progressively less weedy and better adapted to the new conditions. The relative importance of evolutionary versus community ecology responses to global environmental change would depend on the extent of regional and local recruitment limitation, and on whether the suite of human-imposed constraints were novel just regionally or on continental or global scales.
alexandre

Athens, Greece

#6 Jun 22, 2014
rio wrote:
Last time around there was probably not billions of humans destroying their environment.
It's so funny when people try to absolve human activities of any impact on the environment.
Guilty us ? Never !!!
YOU are guilty.

Driving those gaz guzzling Jaguars destroying the Earth and showing off, you should be ashamed.

~A~
rio

London, UK

#7 Jun 22, 2014
alexandre wrote:
<quoted text>
YOU are guilty.
Driving those gaz guzzling Jaguars destroying the Earth and showing off, you should be ashamed.
~A~
The people who are most guilty are those traveling by air, holydaymakers, businessmen, etc...

Also people attending cultural or sporting events by cars or coaches, etc...

I hardly do that.
Jim the Hoax Denier

Bastrop, TX

#8 Jun 23, 2014
rio wrote:
<quoted text>
The people who are most guilty are those traveling by air, holydaymakers, businessmen, etc...
Also people attending cultural or sporting events by cars or coaches, etc...
I hardly do that.
Thank you so much for offsetting my horribly egregious CO2 footprint! The world, er Gaia, needs dedicated envirowhackos to selflessly give their fun so others may enjoy their life!
SpaceBlues

Houston, TX

#9 Jun 23, 2014
Jim the Hoax Denier wrote:
<quoted text>
Thank you so much for offsetting my horribly egregious CO2 footprint! The world, er Gaia, needs dedicated envirowhackos to selflessly give their fun so others may enjoy their life!
London's dirty secret: worse air than Beijing

From your fav paper.. Moving to London?

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